As usually happens with every multi-platform release, Digital Foundry has published a new video comparison showing Street Fighter V's performances on both PlayStation 4 and PC.
According to the video, it seems that Capcom has done a really decent job, because the game runs on both platforms in 1080p and at 60 fps. The differences between the two versions seem to be minimal, although the PC version has better anti-aliasing and higher post-processing effects.
DF has more thoroughly analysed the PS4 version, in particular to find out the frame-rate differences between the offline and online games. In the first case, the game runs at a smooth 60fps, but it is when you start to play online that Capcom's fighting game has some issues. Hopefully Capcom will fix these problems with future updates.